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NavSource Online:
Motor Torpedo Boat Photo Archive

Courtesy of Tommy Trampp


Call sign:
Nan - William - Able - Peter

Sunk 9 August 1944

80' Elco Motor Torpedo Boat:

  • Laid down 6 October 1943 by the Electric Boat Co., Elco Works, Bayonne, NJ
  • Launched 29 December 1943
  • Completed 25 January 1944, placed in service under the command of LT Harry M. Crist, USNR and assigned to Motor Torpedo Boat Squadron THIRTY FOUR (MTBRon 34) under the command of LT Allen H. Harris, USNR
  • MTBRon 34 had action in the English Channel area from June 1944 to October 1944
  • The "Sassy Sue" was sunk 9 August 1944 by gunfire and ramming from a German minesweeper in the English Channel off the Isle of Jersey at position 49 11'N., 02 15' W.


  • Displacement 56 t.
  • Length 80'
  • Beam 20' 8"
  • Draft 5'
  • Speed 41 kts.
  • Complement 17
  • Armament: One 40mm, four 21" Torpedoes and two twin .50 cal. machine guns
  • Propulsion: Three 1,500shp Packard W-14 M2500 gasoline engines, three shafts.
    Click on thumbnail
    for full size image
    Size Image Description Source
    PT-509 144k Tide (AM 125) sinking off "Utah" Beach after striking a mine during the Normandy invasion, 7 June 1944. PT-509 and Pheasant (AM 61) are standing by. Photographed from
    Threat (AM-124)
    National Archives photo 80-G-651677
    Naval History and Heritage Command
    PT-509 80k 20 August 1944
    Wreckage of PT-509

    There is no DANFS history available for PT-509
    Back To The Main Photo Index Back to the Patrol Craft/Gunboat/Submarine Chaser Index Back to the Motor Torpedo Boat (PT) Photo Index

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    This page created and maintained by Joseph M. Radigan
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